/* roulang page: index */
:root{
  --bg:#060A12;
  --panel:#0E1626;
  --panel-2:#131E31;
  --primary:#1FE0B0;
  --primary-dark:#12A98A;
  --accent:#FF6B4A;
  --purple:#7C5CFF;
  --text:#EAF2FF;
  --text-2:#93A4BF;
  --text-3:#64748B;
  --ink:#0B1220;
  --ink-2:#475569;
  --ok:#2BD67B;
  --warn:#FFB020;
  --err:#FF5470;
  --info:#4A9DFF;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --topbar:rgba(247,249,252,.94);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:20px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:48px;
  --sp-8:64px;
  --sp-9:96px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.35);
  --shadow-top:0 4px 16px rgba(11,18,32,.06);
  --shadow-top-2:0 6px 22px rgba(11,18,32,.14);
  --glow:0 0 24px rgba(31,224,176,.18);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-9) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700;letter-spacing:.2px;}
.section-head p{color:var(--text-2);font-size:14px;margin-top:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);letter-spacing:2px;
  border:1px solid rgba(31,224,176,.35);
  background:rgba(31,224,176,.08);
  padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.link-more{color:var(--primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease;}
.link-more::after{content:"→";transition:transform .2s ease;}
.link-more:hover::after{transform:translateX(3px);}
.link-more:hover{color:#5CF2CC;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.3px;
  transition:transform .2s ease,box-shadow .25s ease,border-color .2s ease,color .2s ease,background .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#05221B;
  box-shadow:0 6px 20px rgba(31,224,176,.22);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(31,224,176,.35);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(31,224,176,.25);}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid var(--line-2);
}
.btn-ghost:hover{border-color:rgba(31,224,176,.65);color:var(--primary);box-shadow:var(--glow);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none;}

/* ===== 顶栏 ===== */
.topbar{
  position:sticky;top:0;z-index:100;
  background:var(--topbar);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,18,32,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.topbar.is-scrolled{background:#FFFFFF;box-shadow:var(--shadow-top-2);}
.topbar-inner{
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;
  background:linear-gradient(135deg,#0E1626,#131E31);
  border:1px solid rgba(31,224,176,.45);
  display:grid;grid-template-columns:repeat(2,1fr);gap:3px;padding:7px;
  box-shadow:0 0 16px rgba(31,224,176,.22);
}
.logo-mark i{background:var(--primary);border-radius:2px;display:block;}
.logo-mark i:nth-child(2){background:var(--accent);}
.logo-mark i:nth-child(3){background:rgba(31,224,176,.45);}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.4px;transition:color .2s ease,background .3s ease;}
.logo:hover .logo-text{color:var(--primary-dark);}
.nav{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:22px 0;transition:color .2s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav a:hover{color:var(--ink);}
.nav a:hover::after{transform:scaleX(1);}
.nav a.is-active{color:var(--ink);font-weight:700;}
.nav a.is-active::after{transform:scaleX(1);}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search{
  position:relative;display:flex;align-items:center;
}
.search input{
  width:220px;height:42px;border-radius:var(--radius-pill);
  background:#EEF2F7;border:1px solid transparent;
  padding:0 18px 0 40px;font-size:14px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search input::placeholder{color:#8A98AC;}
.search input:focus{
  outline:none;background:#FFFFFF;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,224,176,.12);
}
.search svg{position:absolute;left:15px;width:16px;height:16px;stroke:#8A98AC;fill:none;stroke-width:2;}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid rgba(11,18,32,.12);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;inset:56px 0 0 0;z-index:99;
  background:rgba(247,249,252,.98);backdrop-filter:blur(16px);
  padding:20px 24px 28px;display:none;flex-direction:column;gap:4px;
  overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:16px;font-weight:500;color:var(--ink);
  border-bottom:1px solid rgba(11,18,32,.07);
}
.drawer a::after{content:"→";color:#94A3B8;font-size:15px;}
.drawer .btn{width:100%;margin-top:20px;}
.drawer-note{margin-top:14px;font-size:13px;color:var(--ink-2);line-height:1.7;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(6,10,18,.86) 0%,rgba(6,10,18,.72) 52%,rgba(6,10,18,.62) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;top:-40%;left:52%;width:520px;height:900px;
  background:linear-gradient(180deg,rgba(31,224,176,.18),rgba(31,224,176,0) 70%);
  transform:rotate(24deg);filter:blur(6px);pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;
  padding:88px 0 96px;
}
.hero-copy h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.2px;
  margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:17px;line-height:1.75;color:#C7D6EC;max-width:520px;margin-bottom:16px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:#CFE7E0;
  background:rgba(31,224,176,.1);border:1px solid rgba(31,224,176,.3);
  padding:5px 12px;border-radius:var(--radius-pill);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.trust-row{display:flex;flex-wrap:wrap;gap:28px;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:#B6C6DE;}
.trust-item svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.8;flex-shrink:0;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;left:20px;bottom:20px;right:20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(6,10,18,.68);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-md);padding:14px 18px;
}
.hero-badge strong{font-size:15px;display:block;}
.hero-badge span{font-size:13px;color:var(--text-2);}
.hero-badge .num{color:var(--accent);font-size:22px;font-weight:700;}

/* ===== 卡片网格 ===== */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-card),0 0 24px rgba(31,224,176,.18);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--panel-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.tag{
  position:absolute;top:12px;left:12px;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 10px;border-radius:var(--radius-pill);
  background:rgba(255,107,74,.92);color:#2A0C04;letter-spacing:.5px;
}
.tag.is-new{background:rgba(31,224,176,.92);color:#05221B;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;line-height:1.45;font-weight:600;}
.card-desc{
  font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line);}
.price{font-size:18px;font-weight:700;color:var(--accent);}
.price small{font-size:13px;color:var(--text-3);font-weight:400;margin-left:4px;}
.card-state{font-size:13px;color:var(--text-3);}
.state-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ok);margin-right:6px;box-shadow:0 0 8px var(--ok);}

/* ===== 评价轮播 ===== */
.reviews-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:32px;}
.slider-btns{display:flex;gap:10px;}
.slider-btn{
  width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line-2);color:var(--text);
  display:flex;align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,background .2s ease;
}
.slider-btn:hover{border-color:rgba(31,224,176,.65);color:var(--primary);box-shadow:var(--glow);}
.slider-btn:active{transform:scale(.96);}
.slider{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;scrollbar-width:none;}
.slider::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 40px)/3);
  scroll-snap-align:start;
  background:rgba(255,255,255,.04);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;
  transition:border-color .25s ease,box-shadow .3s ease;
}
.review-card:hover{border-color:rgba(31,224,176,.55);box-shadow:var(--glow);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;flex-shrink:0;border:1px solid var(--line-2);}
.avatar img{width:100%;height:100%;object-fit:cover;aspect-ratio:1/1;}
.review-name{font-size:15px;font-weight:600;}
.review-role{font-size:13px;color:var(--text-3);}
.stars{color:var(--warn);font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.review-text{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ===== 保障条 ===== */
.guard{padding:0 0 var(--sp-9);}
.guard-bar{
  display:grid;grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.04);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
}
.guard-item{
  padding:24px 18px;display:flex;flex-direction:column;gap:8px;
  border-right:1px solid var(--line);
}
.guard-item:last-child{border-right:0;}
.guard-item svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.7;}
.guard-item strong{font-size:15px;font-weight:600;}
.guard-item span{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ===== 资讯列表（CMS） ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .3s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-card),0 0 24px rgba(31,224,176,.18);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  align-self:flex-start;font-size:12px;line-height:1;
  padding:6px 10px;border-radius:var(--radius-pill);
  color:var(--primary);background:rgba(31,224,176,.1);
  border:1px solid rgba(31,224,176,.3);
}
.news-title{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-sum{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;justify-content:space-between;gap:12px;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--panel);border:1px dashed var(--line-2);border-radius:var(--radius-lg);
}
.empty-state svg{width:36px;height:36px;stroke:var(--text-3);fill:none;stroke-width:1.6;margin:0 auto 16px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px;}

/* ===== FAQ ===== */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-intro h2{font-size:28px;line-height:1.3;font-weight:700;margin-bottom:14px;}
.faq-intro p{color:var(--text-2);font-size:15px;line-height:1.8;margin-bottom:22px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);
  transition:border-color .22s ease,background .22s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(31,224,176,.5);background:rgba(31,224,176,.05);box-shadow:var(--glow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";color:var(--primary);font-size:20px;font-weight:400;
  transition:transform .2s ease;flex-shrink:0;
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);transition:opacity .2s ease;}

/* ===== CTA ===== */
.cta-panel{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:rgba(255,255,255,.04);backdrop-filter:blur(16px);
  border:1px solid rgba(31,224,176,.35);
  border-radius:var(--radius-lg);
  padding:44px 48px;
}
.cta-panel::before{
  content:"";position:absolute;right:-80px;top:-120px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(31,224,176,.22),transparent 68%);
}
.cta-panel h2{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.cta-panel p{color:var(--text-2);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
.cta-note{margin-top:14px;font-size:12px;color:var(--text-3);}

/* ===== 页脚 ===== */
.site-footer{
  background:#060A12;border-top:1px solid rgba(31,224,176,.12);
  padding:64px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;}
.footer-brand .logo-text{color:var(--text);}
.footer-brand p{color:var(--text-2);font-size:14px;line-height:1.8;margin-top:16px;max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:var(--text-2);font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--primary);}
.footer-contact{color:var(--text-2);font-size:14px;line-height:1.9;}
.footer-contact strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .grid-4{grid-template-columns:repeat(3,1fr);}
  .hero-copy h1{font-size:34px;}
}
@media (max-width:1023px){
  .nav{display:none;}
  .search{display:none;}
  .burger{display:flex;}
  .topbar-inner{height:56px;}
  .drawer{inset:56px 0 0 0;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:64px 0 72px;}
  .hero-copy h1{font-size:32px;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .guard-bar{grid-template-columns:repeat(3,1fr);}
  .guard-item:nth-child(3){border-right:0;}
  .guard-item:nth-child(4),.guard-item:nth-child(5){border-top:1px solid var(--line);}
  .review-card{flex:0 0 calc((100% - 20px)/2);}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .hero-copy h1{font-size:28px;line-height:1.32;}
  .hero-sub{font-size:15px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .section-head h2,.faq-intro h2{font-size:22px;}
  .grid-4{grid-template-columns:1fr;gap:16px;}
  .news-grid{grid-template-columns:1fr;gap:16px;}
  .slider{gap:16px;margin:0 -16px;padding:0 16px 8px;}
  .review-card{flex:0 0 78%;}
  .guard-bar{grid-template-columns:repeat(2,1fr);}
  .guard-item{border-right:0;border-bottom:1px solid var(--line);}
  .guard-item:nth-child(odd){border-right:1px solid var(--line);}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:28px 22px;gap:22px;}
  .cta-panel h2{font-size:22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;min-height:48px;}
  .hero-actions .btn{width:100%;min-height:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .trust-row{gap:16px;}
  .trust-item{font-size:13px;}
  .review-card{flex:0 0 86%;}
}

/* roulang page: article */
:root{
  --bg:#060A12;
  --panel:#0E1626;
  --panel-2:#131E31;
  --primary:#1FE0B0;
  --primary-press:#12A98A;
  --accent:#FF6B4A;
  --violet:#7C5CFF;
  --text:#EAF2FF;
  --text-2:#93A4BF;
  --text-3:#64748B;
  --ink:#0B1220;
  --ink-2:#475569;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.04);
  --success:#2BD67B;
  --warning:#FFB020;
  --danger:#FF5470;
  --info:#4A9DFF;

  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;

  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:20px; --sp-5:24px; --sp-6:32px; --sp-7:40px; --sp-8:56px; --sp-9:72px; --sp-10:96px;

  --shadow-1:0 1px 2px rgba(0,0,0,.4);
  --shadow-2:0 12px 32px rgba(0,0,0,.35);
  --shadow-top:0 4px 16px rgba(11,18,32,.06);

  --container:1200px;
  --prose:860px;
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,figure,ul,ol,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.container-narrow{max-width:var(--prose)}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(247,249,252,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,18,32,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.topbar.is-scrolled{background:#FFFFFF;box-shadow:var(--shadow-top)}
.topbar-inner{display:flex;align-items:center;gap:var(--sp-5);height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;flex:none;
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
}
.logo-mark i{display:block;border-radius:4px;background:linear-gradient(135deg,var(--primary),var(--primary-press))}
.logo-mark i:nth-child(2){border-radius:50%;background:linear-gradient(135deg,var(--accent),#FF9366)}
.logo-mark i:nth-child(3){border-radius:50% 4px 4px 50%;background:linear-gradient(135deg,var(--violet),#5B7CFF)}
.logo-mark i:nth-child(4){border-radius:4px 50% 50% 4px;background:linear-gradient(135deg,#2BD67B,#12A98A)}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;transition:color .2s ease}
.logo:hover .logo-text{color:var(--primary-press)}

.nav{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-press));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.is-active{color:var(--ink);font-weight:600}
.nav a.is-active::after{transform:scaleX(1)}

.topbar-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.search{position:relative;display:flex;align-items:center}
.search svg{
  position:absolute;left:14px;width:16px;height:16px;fill:none;
  stroke:#94A3B8;stroke-width:1.8;stroke-linecap:round;pointer-events:none;
}
.search input{
  width:220px;height:40px;
  padding:0 16px 0 38px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  background:#EEF2F7;color:var(--ink);
  font-size:14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search input::placeholder{color:#94A3B8}
.search input:focus{
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,224,176,.12);
}
.burger{
  display:none;width:40px;height:40px;border:1px solid rgba(11,18,32,.12);
  background:#fff;border-radius:12px;padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s ease}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:99;
  background:rgba(247,249,252,.98);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:8px 20px 120px;
  opacity:0;pointer-events:none;transform:translateY(-10px);
  transition:opacity .25s ease,transform .25s ease;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;pointer-events:auto;transform:none}
.drawer a{
  display:flex;align-items:center;height:48px;
  color:var(--ink);font-size:16px;font-weight:500;
  border-bottom:1px solid rgba(11,18,32,.08);
}
.drawer a:last-of-type{border-bottom:0}
.drawer-cta{position:fixed;left:16px;right:16px;bottom:16px;z-index:101}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease,background .22s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-press));
  color:#05221B;
  box-shadow:0 6px 20px rgba(31,224,176,.22);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(31,224,176,.35)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 14px rgba(31,224,176,.2)}
.btn-ghost{
  background:transparent;border-color:var(--line-2);color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
}
.link-more svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 内页头 ---------- */
.page-head{position:relative;overflow:hidden;padding:var(--sp-9) 0 var(--sp-8);background:var(--bg)}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.26;
}
.page-head::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.68) 0%,rgba(6,10,18,.94) 78%,var(--bg) 100%);
}
.page-head .grid-lines{
  position:absolute;inset:0;opacity:.35;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-head .container{position:relative;z-index:2}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:var(--sp-4)}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.page-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.2px;
  max-width:920px;
  background:linear-gradient(120deg,#FFFFFF 10%,#B9E9DA 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:var(--sp-4);font-size:13px;color:var(--text-2)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}
.meta-row time,.meta-row .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.3px;
  color:#05221B;
  background:linear-gradient(135deg,var(--primary),var(--primary-press));
}
.badge-outline{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);border:1px solid var(--line-2);
  font-size:12px;color:var(--text-2);
}

/* ---------- 文章主体 ---------- */
.article-main{padding-bottom:var(--sp-10)}
.article-card{
  background:linear-gradient(180deg,rgba(19,30,49,.9),rgba(14,22,38,.92));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1),var(--shadow-2);
  padding:var(--sp-8);
}
.article-cover{
  width:100%;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-md);border:1px solid var(--line);
  margin-bottom:var(--sp-7);
  position:relative;
}
.article-cover img{width:100%;height:100%;object-fit:cover}

.prose{max-width:var(--prose);margin:0 auto}
.prose p{font-size:17px;line-height:1.9;color:#D7E3F5;margin-bottom:1.2em;text-indent:0}
.prose h2{
  position:relative;
  font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
  margin:40px 0 16px;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-press));
}
.prose h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--primary);margin:28px 0 12px}
.prose h4{font-size:16px;font-weight:600;color:var(--text);margin:22px 0 10px}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--primary-press)}
.prose ul,.prose ol{padding-left:1.3em;margin-bottom:1.2em}
.prose ul li{list-style:disc;font-size:16.5px;line-height:1.9;color:#D7E3F5;margin-bottom:.5em}
.prose ol li{list-style:decimal;font-size:16.5px;line-height:1.9;color:#D7E3F5;margin-bottom:.5em}
.prose strong{color:#FFFFFF;font-weight:600}
.prose blockquote{
  background:var(--glass);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:16px 20px;margin:24px 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.prose img{
  width:100%;height:auto;border-radius:var(--r-sm);
  border:1px solid var(--line);margin:24px 0;
}
.prose figure{margin:24px 0}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.prose table{font-size:15px;margin:24px 0;border-radius:var(--r-sm);overflow:hidden}
.prose thead th{
  text-align:left;font-weight:600;color:var(--text);
  padding:12px 14px;background:rgba(255,255,255,.05);
  border-bottom:1px solid var(--line-2);
}
.prose tbody td{padding:12px 14px;color:#D7E3F5;border-bottom:1px solid var(--line)}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.prose code{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;font-size:14px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;color:var(--primary);
}
.prose pre{
  background:rgba(6,10,18,.7);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px;overflow-x:auto;margin:24px 0;
}
.prose pre code{background:none;border:0;padding:0;color:#D7E3F5;font-size:13.5px;line-height:1.7}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.empty-state{text-align:center;padding:var(--sp-9) var(--sp-4)}
.empty-state .icon{
  width:64px;height:64px;margin:0 auto var(--sp-4);
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);
}
.empty-state .icon svg{width:28px;height:28px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round}
.empty-state h3{font-size:20px;font-weight:600;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:var(--sp-5)}

/* ---------- 文末区 ---------- */
.article-foot{max-width:var(--prose);margin:var(--sp-8) auto 0}
.tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding-top:var(--sp-5);border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--glass);color:var(--text-2);font-size:13px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{border-color:rgba(31,224,176,.55);color:var(--primary);transform:translateY(-1px)}

.foot-nav{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-4);margin-top:var(--sp-6)}
.foot-nav a{
  display:block;padding:18px 20px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.foot-nav a:hover{border-color:rgba(31,224,176,.55);transform:translateY(-2px);box-shadow:0 0 24px rgba(31,224,176,.14)}
.foot-nav .k{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px;letter-spacing:.4px}
.foot-nav .v{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.5}
.foot-nav a:hover .v{color:var(--primary)}
.foot-back{margin-top:var(--sp-6);display:flex;justify-content:center}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sp-10) 0}
.section-alt{background:linear-gradient(180deg,rgba(19,30,49,.55),rgba(6,10,18,0) 70%)}
.section-head{margin-bottom:var(--sp-6)}
.section-head h2{font-size:28px;line-height:1.3;font-weight:700;color:var(--text)}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:720px}

/* 保障条 */
.guard{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  overflow:hidden;
}
.guard-item{
  display:flex;align-items:center;gap:12px;
  padding:22px 24px;
  border-right:1px solid var(--line);
}
.guard-item:last-child{border-right:0}
.guard-item .gi{
  width:36px;height:36px;flex:none;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,224,176,.1);border:1px solid rgba(31,224,176,.28);
}
.guard-item .gi svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.guard-item span{font-size:15px;font-weight:600;color:var(--text)}

/* 延伸阅读卡 */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4)}
.rel-card{
  display:block;border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-2),0 0 24px rgba(31,224,176,.16)}
.rel-card .thumb{width:100%;aspect-ratio:16/9;overflow:hidden}
.rel-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .thumb img{transform:scale(1.04)}
.rel-card .body{padding:20px}
.rel-card h3{font-size:17px;line-height:1.45;font-weight:600;color:var(--text)}
.rel-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card .go{margin-top:14px;font-size:13px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.rel-card:hover .go{color:var(--primary-press)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border-radius:var(--r-md);
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item:hover{border-color:rgba(31,224,176,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ic{
  width:26px;height:26px;flex:none;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-2);color:var(--primary);
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item summary .ic svg{width:12px;height:12px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round}
.faq-item[open] summary .ic{transform:rotate(45deg);border-color:rgba(31,224,176,.6)}
.faq-item .answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* CTA 面板 */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(19,30,49,.95),rgba(14,22,38,.95));
  border:1px solid rgba(31,224,176,.28);
  box-shadow:var(--shadow-2),0 0 40px rgba(31,224,176,.08);
  padding:var(--sp-8);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-7);
}
.cta-panel::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,176,.22),transparent 68%);
}
.cta-panel .cta-copy{position:relative;z-index:1;max-width:640px}
.cta-panel h2{font-size:28px;line-height:1.3;font-weight:700}
.cta-panel p{margin-top:12px;font-size:15px;color:var(--text-2)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex:none}
.cta-note{position:relative;z-index:1;font-size:12px;color:var(--text-3);margin-top:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#060A12;
  border-top:1px solid rgba(31,224,176,.12);
  padding:var(--sp-9) 0 var(--sp-5);
  margin-top:var(--sp-9);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:var(--sp-6)}
.footer-brand .logo .logo-text{color:#FFFFFF}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-col ul a:hover{color:var(--primary)}
.footer-contact{font-size:14px;line-height:2;color:var(--text-2)}
.footer-contact strong{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:var(--sp-7);padding-top:var(--sp-4);
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:var(--sp-5)}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:1100px){
  .nav{display:none}
  .burger{display:flex}
}
@media (max-width:1023px){
  .section{padding:var(--sp-9) 0}
  .guard{grid-template-columns:repeat(2,1fr)}
  .guard-item:nth-child(2n){border-right:0}
  .guard-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{flex-direction:column;align-items:flex-start;padding:var(--sp-7)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:12px}
  .drawer{top:56px}
  .logo-text{font-size:16px}
  .logo-mark{width:28px;height:28px}
  .search{display:none}
  .page-head{padding:var(--sp-8) 0 var(--sp-7)}
  .page-head h1{font-size:28px}
  .breadcrumb .current{max-width:200px}
  .article-card{padding:var(--sp-5);border-radius:var(--r-md)}
  .prose p,.prose ul li,.prose ol li{font-size:16.5px}
  .prose h2{font-size:21px;margin-top:32px}
  .rel-grid{grid-template-columns:1fr}
  .foot-nav{grid-template-columns:1fr}
  .section-head h2,.cta-panel h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-5)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%;min-height:44px}
}
@media (max-width:520px){
  .guard{grid-template-columns:1fr}
  .guard-item{border-right:0;border-bottom:1px solid var(--line)}
  .guard-item:last-child{border-bottom:0}
  .btn{min-height:44px}
}

/* roulang page: category1 */
:root{
  --bg:#060A12;
  --panel:#0E1626;
  --panel-2:#131E31;
  --primary:#1FE0B0;
  --primary-dark:#12A98A;
  --accent:#FF6B4A;
  --violet:#7C5CFF;
  --text:#EAF2FF;
  --text-2:#93A4BF;
  --text-3:#64748B;
  --ink:#0B1220;
  --ink-2:#475569;
  --success:#2BD67B;
  --warn:#FFB020;
  --danger:#FF5470;
  --info:#4A9DFF;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.04);
  --glass-border:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.35);
  --shadow-top:0 4px 16px rgba(11,18,32,.06);
  --section:96px;
  --maxw:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.5px;}
h2{font-size:28px;line-height:1.3;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(247,249,252,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,18,32,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.topbar.is-solid{background:#FFFFFF;box-shadow:0 8px 24px rgba(11,18,32,.10);}
.topbar-inner{height:68px;display:flex;align-items:center;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:32px;height:32px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;}
.logo-mark i{display:block;border-radius:4px;background:#0B1220;transition:background .25s ease;}
.logo-mark i:nth-child(1){background:linear-gradient(135deg,#1FE0B0,#12A98A);}
.logo-mark i:nth-child(4){background:linear-gradient(135deg,#FF6B4A,#FF8D6F);}
.logo-text{font-size:18px;font-weight:700;color:#0B1220;transition:color .25s ease;}
.logo:hover .logo-text{color:var(--primary-dark);}
.nav{display:flex;align-items:center;gap:28px;margin-left:12px;}
.nav a{
  position:relative;font-size:15px;font-weight:500;color:#475569;padding:22px 0;
  transition:color .2s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav a:hover{color:#0B1220;}
.nav a.is-active{color:#0B1220;font-weight:600;}
.nav a.is-active::after{transform:scaleX(1);}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 14px;border-radius:var(--radius-pill);
  background:#EEF2F7;border:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:#64748B;stroke-width:2;stroke-linecap:round;}
.search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:#0B1220;}
.search input::placeholder{color:#94A3B8;}
.search:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,224,176,.16);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--radius-pill);
  padding:0 22px;height:44px;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease,background .18s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:linear-gradient(135deg,#1FE0B0,#12A98A);color:#05221B;border:1px solid transparent;}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(31,224,176,.35);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);}
.topbar .btn-ghost{border-color:rgba(11,18,32,.16);color:#0B1220;}
.topbar .btn-ghost:hover{border-color:var(--primary-dark);color:var(--primary-dark);}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;}
.burger{display:none;width:40px;height:40px;border-radius:12px;border:1px solid rgba(11,18,32,.12);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#0B1220;transition:transform .2s ease,opacity .2s ease;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:56px 0 0 0;z-index:99;background:rgba(247,249,252,.99);
  padding:12px 16px 96px;display:none;overflow-y:auto;
}
.drawer.is-open{display:block;}
.drawer a{
  display:flex;align-items:center;height:48px;font-size:16px;font-weight:500;
  color:#0B1220;border-bottom:1px solid rgba(11,18,32,.08);
}
.drawer a.is-active{color:var(--primary-dark);font-weight:600;}
.drawer-cta{position:fixed;left:16px;right:16px;bottom:16px;z-index:100;}
.drawer-cta .btn{width:100%;}
.drawer-cta{display:none;}
.drawer-cta.is-open{display:block;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.72) 0%,rgba(6,10,18,.86) 60%,rgba(6,10,18,.96) 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(31,224,176,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(31,224,176,.07) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-beam{
  position:absolute;top:-30%;left:-10%;width:60%;height:160%;
  background:linear-gradient(100deg,transparent 0%,rgba(31,224,176,.10) 45%,transparent 70%);
  transform:rotate(-12deg);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span{color:var(--text-3);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;margin-bottom:20px;
  border-radius:var(--radius-pill);background:rgba(31,224,176,.10);
  border:1px solid rgba(31,224,176,.28);color:var(--primary);font-size:13px;font-weight:600;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(31,224,176,.9);}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.9;color:var(--text-2);max-width:680px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:28px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.hero-trust div{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2);}
.hero-trust svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2);max-width:720px;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600;flex:0 0 auto;}
.link-more svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(3px);}

/* 保障条 */
.guarantee{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--glass);border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-radius:var(--radius-lg);overflow:hidden;
}
.guarantee-item{display:flex;align-items:center;gap:12px;padding:24px 22px;border-right:1px solid var(--line);}
.guarantee-item:last-child{border-right:0;}
.guarantee-item svg{width:22px;height:22px;flex:0 0 auto;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.guarantee-item strong{display:block;font-size:16px;font-weight:600;}
.guarantee-item em{font-style:normal;font-size:13px;color:var(--text-3);}

/* 交错长条卡 */
.alt-list{border-top:1px solid var(--line);}
.alt-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:36px 0;border-bottom:1px solid var(--line);
}
.alt-row-media{order:2;}
.alt-row-body{order:1;}
.alt-row.is-flip .alt-row-media{order:1;}
.alt-row.is-flip .alt-row-body{order:2;}
.alt-row-media{position:relative;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);}
.alt-row-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.alt-row:hover .alt-row-media img{transform:scale(1.03);}
.alt-row-media .tag-float{
  position:absolute;left:14px;top:14px;height:28px;padding:0 12px;display:inline-flex;align-items:center;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;color:#05221B;
  background:linear-gradient(135deg,#1FE0B0,#12A98A);
}
.alt-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:14px;
  background:var(--panel-2);border:1px solid var(--line);
  font-family:var(--font-num);font-size:14px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;
}
.alt-row h3{font-size:22px;line-height:1.4;font-weight:600;}
.alt-row p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--text-2);}
.alt-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:13px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease;
}
.chip:hover{border-color:rgba(31,224,176,.55);color:var(--primary);}
.alt-row .link-more{margin-top:18px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:24px 22px;
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step:hover{border-color:rgba(31,224,176,.55);transform:translateY(-4px);box-shadow:0 0 24px rgba(31,224,176,.18);}
.step-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:1px;
}
.step h3{margin-top:10px;font-size:18px;}
.step p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--text-2);}
.step-bar{height:3px;border-radius:3px;background:rgba(255,255,255,.07);margin-top:18px;overflow:hidden;}
.step-bar i{display:block;height:100%;background:linear-gradient(90deg,#1FE0B0,#12A98A);}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.scene{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.scene:hover{border-color:rgba(31,224,176,.5);transform:translateY(-4px);background:var(--panel-2);}
.scene svg{width:26px;height:26px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.scene h3{margin-top:16px;font-size:18px;}
.scene p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--text-2);}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-sm);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transition:border-color .22s ease;
}
.faq-item[open]{border-color:rgba(31,224,176,.45);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item[open] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2);animation:faqIn .2s ease;}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* CTA */
.cta{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid rgba(31,224,176,.32);
  background:linear-gradient(135deg,rgba(19,30,49,.94),rgba(14,22,38,.94));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:0 0 60px rgba(31,224,176,.10);
  padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta::before{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,224,176,.20),transparent 66%);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:28px;line-height:1.35;}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:520px;}
.cta-buttons{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-note{margin-top:14px;font-size:12px;color:var(--text-3);}
.cta-form{position:relative;z-index:2;display:grid;gap:14px;background:rgba(6,10,18,.5);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;}
.field{display:grid;gap:8px;}
.field label{font-size:13px;color:var(--text-2);}
.field input,.field textarea{
  width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:12px 14px;font-size:15px;color:var(--text);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,224,176,.16);}
.field textarea{min-height:88px;resize:vertical;}
.form-note{font-size:12px;color:var(--text-3);}

/* 页脚 */
.site-footer{
  background:#060A12;border-top:1px solid rgba(31,224,176,.12);
  padding:64px 0 28px;margin-top:var(--section);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:var(--text);}
.footer-brand .logo-mark i{background:rgba(255,255,255,.18);}
.footer-brand .logo-mark i:nth-child(1){background:linear-gradient(135deg,#1FE0B0,#12A98A);}
.footer-brand .logo-mark i:nth-child(4){background:linear-gradient(135deg,#FF6B4A,#FF8D6F);}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--text-2);max-width:360px;}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
.footer-col a:hover{color:var(--primary);}
.footer-contact{font-size:14px;line-height:2;color:var(--text-2);}
.footer-contact strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2);}
.footer-bottom a:hover{color:var(--primary);}

/* 响应式 */
@media (max-width:1279px){
  .guarantee{grid-template-columns:repeat(2,1fr);}
  .guarantee-item:nth-child(2){border-right:0;}
  .guarantee-item:nth-child(1),.guarantee-item:nth-child(2){border-bottom:1px solid var(--line);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  :root{--section:72px;}
  .nav,.search{display:none;}
  .burger{display:flex;}
  .hero h1{font-size:32px;}
  .alt-row{grid-template-columns:1fr;gap:20px;}
  .alt-row-media,.alt-row-body{order:initial !important;}
  .faq-wrap{grid-template-columns:1fr;gap:24px;}
  .cta{grid-template-columns:1fr;gap:32px;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--section:56px;}
  .container{padding:0 16px;}
  .topbar-inner{height:56px;}
  h1,.hero h1{font-size:28px;}
  h2,.cta-copy h2{font-size:22px;}
  .hero{padding:40px 0 48px;}
  .hero-sub{font-size:15px;}
  .hero-actions .btn{width:100%;}
  .hero-trust{gap:14px;}
  .hero-trust div{font-size:13px;}
  .guarantee{grid-template-columns:1fr;}
  .guarantee-item{border-right:0;border-bottom:1px solid var(--line);}
  .guarantee-item:last-child{border-bottom:0;}
  .steps,.scene-grid{grid-template-columns:1fr;}
  .alt-row h3{font-size:19px;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta{padding:24px;border-radius:20px;}
}

/* roulang page: category2 */
:root{
  --bg:#060A12;
  --panel:#0E1626;
  --panel-2:#131E31;
  --primary:#1FE0B0;
  --primary-press:#12A98A;
  --primary-ink:#0F9E82;
  --accent:#FF6B4A;
  --violet:#7C5CFF;
  --text:#EAF2FF;
  --text-2:#93A4BF;
  --text-3:#64748B;
  --ink:#0B1220;
  --ink-2:#475569;
  --success:#2BD67B;
  --warn:#FFB020;
  --error:#FF5470;
  --info:#4A9DFF;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.04);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 0 24px rgba(31,224,176,.18);
  --container:1200px;
  --gap:20px;
  --section-y:96px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:100;
  background:rgba(247,249,252,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(11,18,32,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.topbar.is-scrolled{background:#FFFFFF;box-shadow:0 4px 16px rgba(11,18,32,.06)}
.topbar-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;
  gap:3px;padding:5px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-press));
  box-shadow:0 4px 12px rgba(31,224,176,.28);
}
.logo-mark i{border-radius:2px;background:rgba(5,34,27,.45)}
.logo-mark i:nth-child(1){background:#05221B}
.logo-mark i:nth-child(4){background:rgba(5,34,27,.75)}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.2px;transition:color .2s}
.logo:hover .logo-text{color:var(--primary-ink)}
.nav{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav a{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:22px 0;transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav a.is-active{color:var(--ink);font-weight:600}
.nav a.is-active::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;background:var(--primary-press)}
.topbar-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.search{position:relative;display:flex;align-items:center;width:220px;height:40px;border-radius:var(--radius-pill);background:#EEF2F7;border:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.search svg{width:16px;height:16px;margin-left:14px;flex:0 0 auto;stroke:#64748B;stroke-width:2;fill:none;stroke-linecap:round}
.search input{width:100%;height:100%;border:0;background:transparent;color:var(--ink);font-size:14px;padding:0 14px 0 8px;outline:none}
.search input::placeholder{color:#8A98AC}
.search:focus-within{border-color:var(--primary-press);box-shadow:0 0 0 3px rgba(31,224,176,.12);background:#fff}
.burger{display:none;width:40px;height:40px;border-radius:12px;border:1px solid rgba(11,18,32,.10);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-press));color:#05221B}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(31,224,176,.35)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;border:1px solid var(--border-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}
.drawer{
  position:fixed;inset:0;z-index:99;display:none;flex-direction:column;
  background:rgba(247,249,252,.98);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:84px 24px 24px;
}
.drawer.is-open{display:flex}
.drawer a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--ink);border-bottom:1px solid rgba(11,18,32,.06)}
.drawer a.is-active{color:var(--primary-ink);font-weight:600}
.drawer .btn{margin-top:24px;width:100%;height:48px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:56px 0 88px;
  background-image:linear-gradient(180deg,rgba(6,10,18,.74),rgba(6,10,18,.9)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero::after{
  content:"";position:absolute;top:-20%;left:-10%;width:70%;height:140%;pointer-events:none;
  background:linear-gradient(115deg,transparent 40%,rgba(31,224,176,.12) 50%,transparent 62%);
}
.hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;margin-bottom:18px;
  border-radius:var(--radius-pill);background:rgba(31,224,176,.12);
  border:1px solid rgba(31,224,176,.35);color:var(--primary);font-size:13px;font-weight:500;
}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.5px}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-trust{display:flex;gap:28px;margin-top:36px;flex-wrap:wrap}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2)}
.hero-trust svg{width:20px;height:20px;stroke:var(--primary);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.hero-media{position:relative;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:14px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(6,10,18,.85));
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0}
.section-alt{background:linear-gradient(180deg,rgba(14,22,38,.6),rgba(6,10,18,0))}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-title{font-size:28px;line-height:1.3;font-weight:700}
.sec-sub{margin-top:10px;font-size:15px;color:var(--text-2);max-width:640px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:15px;font-weight:600}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- 标签筛选 ---------- */
.chips{display:flex;gap:12px;overflow-x:auto;padding:4px 0 10px;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{height:6px}
.chips::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:999px}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--glass);
  color:var(--text-2);font-size:14px;transition:.2s;
}
.chip:hover{color:var(--text);border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-glow)}
.chip.is-active{background:rgba(31,224,176,.14);border-color:rgba(31,224,176,.55);color:var(--primary);font-weight:600}

/* ---------- Bento 网格 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.bento+.bento{margin-top:var(--gap)}
.b-lg{grid-column:span 6}
.b-md{grid-column:span 4}
.b-sm{grid-column:span 2}
.card{
  position:relative;display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-card),var(--shadow-glow)}
.card-glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.08);
}
.card-glass:hover{border-color:rgba(31,224,176,.55);box-shadow:var(--shadow-glow)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-thumb{position:relative}
.card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}
.badge{
  position:absolute;top:14px;left:14px;height:26px;padding:0 12px;display:inline-flex;align-items:center;
  border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.3px;
}
.badge-hot{background:rgba(255,107,74,.92);color:#2A0A03}
.badge-new{background:rgba(31,224,176,.92);color:#05221B}
.card-title{font-size:17px;line-height:1.45;font-weight:600}
.card-text{font-size:14px;line-height:1.75;color:var(--text-2)}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.price{font-size:16px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.icon-wrap{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,224,176,.12);border:1px solid rgba(31,224,176,.28);flex:0 0 auto;
}
.icon-wrap svg{width:22px;height:22px;stroke:var(--primary);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
.b-sm .card-body{padding:18px;gap:8px}
.b-sm .card-title{font-size:15px}
.b-sm .card-text{font-size:13px;line-height:1.65}
.mini-list{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.mini-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.mini-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(31,224,176,.6)}

/* ---------- 数据条 ---------- */
.statbar{
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:32px;
  background:var(--glass);border:1px solid var(--border);border-radius:var(--radius-lg);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);overflow:hidden;
}
.statbar li{padding:22px 20px;text-align:center;border-right:1px solid var(--border)}
.statbar li:last-child{border-right:0}
.stat-num{display:block;font-size:24px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.stat-label{display:block;margin-top:6px;font-size:13px;color:var(--text-2)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:8px}
.step{
  position:relative;padding:26px 22px;border-radius:var(--radius-lg);
  background:var(--panel);border:1px solid var(--border);transition:.25s;
}
.step:hover{border-color:rgba(31,224,176,.45);transform:translateY(-3px)}
.step-num{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:1px}
.step h3{margin-top:12px;font-size:17px;font-weight:600;line-height:1.5}
.step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2)}
.step::after{
  content:"";position:absolute;top:38px;right:-10px;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(31,224,176,.55),transparent);
}
.steps li:last-child::after{display:none}

/* ---------- 清单板块 ---------- */
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.check-list{display:flex;flex-direction:column;gap:14px}
.check-item{
  display:flex;gap:16px;padding:20px;border-radius:var(--radius-md);
  background:var(--panel);border:1px solid var(--border);transition:.25s;
}
.check-item:hover{border-color:rgba(31,224,176,.5);box-shadow:var(--shadow-glow)}
.check-item svg{width:22px;height:22px;flex:0 0 auto;margin-top:4px;stroke:var(--primary);stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.check-item h3{font-size:16px;font-weight:600}
.check-item p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--panel);overflow:hidden;transition:border-color .2s}
.faq-item:hover{border-color:rgba(31,224,176,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
}
.faq-icon{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid rgba(31,224,176,.5);transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--primary);transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;padding:0 22px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-item.is-open .faq-a{padding-bottom:20px}

/* ---------- CTA ---------- */
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  padding:40px;border-radius:24px;
  background:linear-gradient(135deg,rgba(31,224,176,.10),rgba(124,92,255,.06)),var(--panel);
  border:1px solid rgba(31,224,176,.35);box-shadow:0 0 40px rgba(31,224,176,.10);
}
.cta-panel h2{font-size:26px;line-height:1.35;font-weight:700}
.cta-panel p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-note{width:100%;font-size:12px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#060A12;border-top:1px solid rgba(31,224,176,.12);
  padding:64px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo-text{color:var(--text)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--text-2);transition:color .2s}
.footer-col li a:hover{color:var(--primary)}
.footer-contact{font-size:14px;line-height:1.9;color:var(--text-2)}
.footer-contact strong{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero h1{font-size:36px}
}
@media (max-width:1023px){
  :root{--section-y:72px}
  .nav{display:none}
  .burger{display:flex}
  .search{width:180px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .bento{grid-template-columns:repeat(6,1fr)}
  .b-lg{grid-column:span 6}
  .b-md{grid-column:span 3}
  .b-sm{grid-column:span 3}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .split{grid-template-columns:1fr;gap:32px}
  .statbar{grid-template-columns:repeat(2,1fr)}
  .statbar li:nth-child(2){border-right:0}
  .statbar li:nth-child(1),.statbar li:nth-child(2){border-bottom:1px solid var(--border)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:14px}
  .search{display:none}
  .logo-text{font-size:16px}
  .hero{padding:36px 0 64px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:16px;margin-top:28px}
  .sec-title{font-size:22px}
  .sec-head{margin-bottom:24px}
  .bento,.bento+.bento{grid-template-columns:1fr}
  .b-lg,.b-md,.b-sm{grid-column:auto}
  .chips{margin:0 -16px;padding-left:16px;padding-right:16px}
  .steps{grid-template-columns:1fr}
  .statbar{grid-template-columns:1fr}
  .statbar li{border-right:0;border-bottom:1px solid var(--border)}
  .statbar li:last-child{border-bottom:0}
  .cta-panel{padding:26px}
  .cta-panel h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{min-height:44px}
}